release.yml

name: Release

on:
  push:
    tags:
      - 'v*'

jobs:
  build-and-release:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set up Temurin JDK 17
        uses: actions/setup-java@v4
        with:
          distribution: temurin
          java-version: '17'

      - name: Install SWI-Prolog, GHC and cabal
        run: |
          sudo apt-get update
          sudo apt-get install -y swi-prolog ghc cabal-install

      - name: Install Haskell aeson library (for build)
        run: |
          cabal update
          cabal install aeson --lib

      - name: Build Haskell scheduler binary
        run: |
          ghc -O2 -threaded haskell/GeneticSchedule.hs -o genetic-schedule

      - name: Package artifact
        run: |
          mkdir -p dist
          cp genetic-schedule dist/
          cp -r prolog dist/prolog
          cp sample-request.json dist/
          echo "Build timestamp: $(date -u +%Y-%m-%dT%H:%M:%SZ)" > dist/BUILD_INFO.txt
          tar -czf genetic-scheduler-${{ github.ref_name }}.tar.gz -C dist .

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v2
        with:
          files: |
            genetic-scheduler-${{ github.ref_name }}.tar.gz
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}